April 2014
Intermediate to advanced
536 pages
12h 41m
English
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17
INTERFACING: EXTERNAL MEMORY
CHAPTER OBJECTIVES
In this chapter, the reader is introduced to interfacing of external memory devices with 8051 microcontroller. After completion of the chapter, the reader should be able to understand
- How to interface external RAM and ROM with MCS-51.
- Related timing diagrams for external memory access.
- Security features offered by MCS-51 through on-chip program lock bits.
17.1 | Introduction
As we have completed major discussions on internal architecture and instructions of MCS-51, we now may focus on various interfacing issues related to it. We start with external memory interfacing.
17.1.1 | Need of External Memory
At this stage, the reader may ask about the need of external memory interfacing. As a matter ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.